more important thing is how we determine the irq_eframe_link.

 

The following patch can work on upstream kernel vmcore and RHEL9 vmcore.

Maybe we can check the symbols asm_common_interrupt and asm_call_on_stack as below:

diff --git a/x86_64.c b/x86_64.c
index 7a5d6f050c89..62036f71f632 100644
--- a/x86_64.c
+++ b/x86_64.c
@@ -3938,6 +3938,11 @@ in_exception_stack:
         if (irq_eframe) {
                 bt->flags |= BT_EXCEPTION_FRAME;
                 i = (irq_eframe - bt->stackbase)/sizeof(ulong);
+ if (symbol_exists("asm_common_interrupt")) {
+ i -= 1;
+ up = (ulong *)(&bt->stackbuf[i*sizeof(ulong)]);
+ bt->instptr = *up;
+ }
                 x86_64_print_stack_entry(bt, ofp, level, i, bt->instptr);
                 bt->flags &= ~(ulonglong)BT_EXCEPTION_FRAME;
                 cs = x86_64_exception_frame(EFRAME_PRINT|EFRAME_CS, 0,
@@ -6521,6 +6526,16 @@ x86_64_irq_eframe_link_init(void)
  else
  return;
 
+ if (symbol_exists("asm_common_interrupt") && !symbol_exists("asm_call_on_stack")) {
+ machdep->machspec->irq_eframe_link =-32;
+ return;
+ }
+
+ if (symbol_exists("asm_common_interrupt") && symbol_exists("asm_call_on_stack")) {
+ machdep->machspec->irq_eframe_link =-56;
+ return;
+ }
+
  if (THIS_KERNEL_VERSION < LINUX(2,6,9))
  return;